Portion of a LED lamp



FIG. 1 is a perspective view of a portion of a LED lamp in accordance with the present design;

FIG. 2 is a side view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design. Any shading forms no part of the claimed design and is provided to illustrate contour only and is not an indication of texture, gloss, and the like. 

CLAIM The ornamental design for an portion of a LED lamp, as shown and described. 